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YD/T 1460.3-2006 PDF English

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YD/T 1460.3-2006: Telecommunication microduct optical fibre cables and fibre units for installation by blowing - Part 3: Microducts, microduct bundles and microduct accessories
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YD/T 1460.3-2006: Telecommunication microduct optical fibre cables and fibre units for installation by blowing - Part 3: Microducts, microduct bundles and microduct accessories


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COMMUNICATION INDUSTRY STANDARD ICS 33.180.10 M 33 Telecommunication microduct optical fiber cables and fiber units for installation by blowing - Part 3.Microducts, microduct bundles and microduct accessories Issued on. DECEMBER 11, 2006 Implemented on. JANUARY 01, 2007 Issued by. Ministry of Industry and Information Technology of PRC

Table of Contents

Foreword... 3 1 Scope... 4 2 Normative references... 4 3 Definitions... 5 4 Product model and marking... 5 5 Requirements... 7 6 Test methods... 11 7 Inspection rules... 18 8 Packaging, transportation, storage... 20 Appendix A (Normative) Basic technical requirements for microduct accessories... 21 Appendix B (Informative) Structure diagram of microduct and microduct bundle... 23 References... 24

Foreword

YD/T 1460-2006 "Telecommunication microduct optical fiber cables and fiber units for installation by blowing" is divided into the following 5 parts. - Part 1.General; - Part 2.Outer protective ducts; - Part 3.Microducts microduct bundles and microduct accessories; - Part 4.Microduct optical fiber cables; - Part 5.Enhanced performance fiber units. This Part is the Part 3 of YD/T 1460-2006.This Part shall be used, in conjunction with YD/T 1460.1-2006. In the formulation of this Part, the provisions of the main test items refer to the provisions of the International Electrotechnical Commission Standard IEC 60794- 5.2003 " Optical fiber cables - Part 5.Sectional specification - Microduct cabling for installation by blowing"; the main performance indicators of the product refer to the IEC Committee CD document 86A/867/CD"60794-3-50.2003 "Optical fiber cables - Part 3-50.Outdoor fiber cables - Sectional specification for microduct cabling for installation by blowing" (first edition). Appendix A of this Part is a normative appendix. Appendix B is an informative appendix. This Part was proposed by AND shall be under the jurisdiction of China Communications Standardization Association. Drafting organizations of this Part. Wuhan Research Institute of Posts and Telecommunications, Datang Telecom Technology Industry Group, Changfei Optical Fiber and Cable Co., Ltd., Jiangsu Zhongtian Technology Co., Ltd., Sichuan Huiyuan Optical Communication Co., Ltd., Beijing Tonghe Shiyi Telecommunications Science and Technology Research Institute Ltd. The main drafters of this Part. Shi Huiping, Xue Mengchi, Song Zhituo, Wang Jianwei, Wu Yanxiang, Wang Han. Telecommunication microduct optical fiber cables and fiber units for installation by blowing - Part 3.Microducts, microduct bundles and microduct accessories

1 Scope

This Part of YD/T 1460 specifies the definition, product model and marking, requirements, test methods, inspection rules, packaging, transportation, storage of microducts and microduct bundles, as well as the basic requirements for microduct accessories. This Part applies to microducts, microduct bundles, microduct accessories for installation in outdoor or indoor, by blowing.

2 Normative references

The provisions in following documents become the provisions of this Part through reference in this Part of YD/T 1460.For the dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this Part; however, parties who reach an agreement based on this Part are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 2828-2003 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches) (ISO 2859-1.1999, IDT) GB/T 6671-2001 Thermoplastics pipes - Determination of longitudinal reversion (eqv ISO 2505.1994) GB 6995.2-1986 Markings for electric cables and wires - Part 2.Standard colours GB/T 7424.2-2002 Optical fiber cable generic specification - Part 2.Basic optical cable test procedures (IEC 60794-1-2.1999, Optical fiber cables - Part 1-2.Generic specification - Basic optical cable test procedures, MOD) GB/T 8804.1-2003 Thermoplastic pipes - Determination of tensile properties - Part 1.General test method (ISO 6259-1.1997, IDT)

3 Definitions

The following definitions apply to this Part. 3.1 Microduct bundles See the definition in Article 3.3 of YD/T 1460.1-2006.

4 Product model and marking

4.1 Product classification According to the different combinations of microducts, they can usually be divided into three types. 4.2 Types 4.2.1 Type composition Product's type marking includes product category, material, construction, as shown in Figure 1. 4.2.2 Product category 4.3 Specifications 4.3.1 Specifications of microducts The specifications of the microducts consist of the outer and inner diameters of the microducts. The outer diameter and the inner diameter are connected by a "/" sign. 4.4 Model and marking 4.4.1 Models Product model consists of type and specification. Different parts are separated by spaces. 4.4.2 Marking The microduct product marking shall be identified, when processing and ordering, which consists of the model of the microduct and the serial number of this Part. Example 1.For the microduct for installation by blowing, which is made of high- density polyethylene, has an outer diameter of 7.0 mm and an inner diameter of 5.5 mm, whose duct wall structure is ribbed, THEN, the product marking shall be expressed as. SYHL 7/5.5 YD/T 1460.3-2006

5 Requirements

5.1 General requirements The provisions of 5.4 and 5.5 of YD/T 1460.1-2006 apply to this Part. When in use, microducts, microduct bundles or microduct cables must be used, in combination with corresponding accessories. The requirements of microduct accessories are as shown in Appendix A. 5.2 Structure 5.2.1 Structure example Examples of structures for microducts, microduct bundles, microduct cables are as shown in Appendix B. 5.2.4 Microduct bundles Microduct bundles are formed by the collection of a certain number of microducts (bundling). It can be installed in the existing outer protective tube at one time, BUT cannot fill the entire outer protective tube. The duty cycle shall not be greater than 60%. 5.2.5 Microduct cables Where there are waterproof and moisture-proof requirements, the microduct cable shall have a moisture barrier. The material of the moisture barrier shall be such, that can block water and moisture. The sheath of the microduct cable shall be able to completely cover the microduct bundles therein; the thickness should be 0.8 mm. 5.3 Technical requirements 5.3.3 Environmental performance 5.3.3.1 Air pressure 5.3.3.2 Water pressure tightness The microducts, which are connected by microduct joints, shall be airtight as a whole AND meet the test requirements of 6.5.3. 5.3.3.3 Freezing There are no freezing requirements for microducts. Put the microduct at -15 °C for 10 h, the tube shall have no cracks or breaks, meanwhile there shall be no obvious cracks and defects in appearance. 5.4 Delivery length The nominal value of the standard manufacturing length of the microduct should be 2000 m, 3000 m or 4000 m, which has a tolerance of 0% ~ +5%.

6 Test methods

6.1 General The properties of the microducts shall be tested, according to the test methods specified in Table 6. 6.2 Microduct structure inspection The microduct structure shall be visually inspected, at no less than 100 mm away from the end of the microduct, for the integrity and structure of the microduct; the inner wall can be viewed with a light source. 6.3 Dimensional inspection 6.3.1 Length The delivery length is measured by a metering device, whose measurement error must not be negative. The measurement error is determined by a steel tape measure, which has an accuracy of 1 mm. 6.4 Measurement methods of mechanical properties 6.4.1 General requirements The following test methods and test conditions are used, to verify the mechanical properties of the product. When the test results meet the requirements of Chapter 5, and it is judged to be qualified. 6.4.2 Tensile property 6.5 Measurement methods of environmental performance 6.5.1 General The test methods and test conditions, which are specified below, are used to verify the environmental performance of the product. When the test results meet the specified qualification criteria, it is judged to be qualified. 6.5.2 Air pressure

7 Inspection rules

7.1 General The manufacturer shall establish a quality assurance system, to ensure that the product quality meets the requirements of this standard. Microduct products shall be inspected by the quality inspection department of the manufacturer. 7.2 Exit-factory inspection 7.2.1 Exit-factory inspection items The exit-factory inspection items are as shown in Table 6. 7.2.2 Sampling 7.2.3 Judgment rules For the size in Article 5.2, in the n samples in accordance with the sampling scheme in Table 7, if there are less than or equal to Ac samples, that do not meet the requirements, the batch is judged to be qualified. If there are more than or equal to Re samples, that do not meet the requirements, the batch is judged to be unqualified. If one of the items in 5.3 fails to meet the indicator, it may randomly select double quantity of samples, for re-inspection of the item. If it is still unqualified, the batch will be judged unqualified. 7.3 Type inspection 7.3.1 Inspection conditions In one of the following cases, type inspection shall be carried out. 7.3.2 Inspection items The items of type inspection are all items in Table 6. 7.3.3 Sampling For the specimens, which are used for type inspection, they shall be randomly taken Batch size N Sample size n Acceptance number Ac Rejection number Re from the qualified products in the exit-factory inspection. The number of samples shall meet the requirements of each item in Chapter 6. 7.3.5 Sample processing For the samples for type inspection, regardless of whether they are qualified or not, they are not allowed to leave the factory.

8 Packaging, transportation, storage

8.1 Packaging The microducts are packed in wooden discs; the inner end must be drawn out and protected against impact, to facilitate the inflation in the microducts. The diameter of the inner circle of the wooden disc shall not be less than the minimum bending diameter of the microduct or microduct bundle. 8.3 Storage 8.3.1 Storage field The storage field shall be flat and neatly stacked. The stacking height shall not exceed 3 m. It shall not be exposed to the sun. 8.3.2 Storage temperature -20 °C ± 60 °C. YD/T 1460.3-2006 COMMUNICATION INDUSTRY STANDARD ICS 33.180.10 M 33 Telecommunication microduct optical fiber cables and fiber units for installation by blowing - Part 3.Microducts, microduct bundles and microduct accessories Issued on. DECEMBER 11, 2006 Implemented on. JANUARY 01, 2007 Issued by. Ministry of Industry and Information Technology of PRC

Table of Contents

Foreword... 3 1 Scope... 4 2 Normative references... 4 3 Definitions... 5 4 Product model and marking... 5 5 Requirements... 7 6 Test methods... 11 7 Inspection rules... 18 8 Packaging, transportation, storage... 20 Appendix A (Normative) Basic technical requirements for microduct accessories... 21 Appendix B (Informative) Structure diagram of microduct and microduct bundle... 23 References... 24

Foreword

YD/T 1460-2006 "Telecommunication microduct optical fiber cables and fiber units for installation by blowing" is divided into the following 5 parts. - Part 1.General; - Part 2.Outer protective ducts; - Part 3.Microducts microduct bundles and microduct accessories; - Part 4.Microduct optical fiber cables; - Part 5.Enhanced performance fiber units. This Part is the Part 3 of YD/T 1460-2006.This Part shall be used, in conjunction with YD/T 1460.1-2006. In the formulation of this Part, the provisions of the main test items refer to the provisions of the International Electrotechnical Commission Standard IEC 60794- 5.2003 " Optical fiber cables - Part 5.Sectional specification - Microduct cabling for installation by blowing"; the main performance indicators of the product refer to the IEC Committee CD document 86A/867/CD"60794-3-50.2003 "Optical fiber cables - Part 3-50.Outdoor fiber cables - Sectional specification for microduct cabling for installation by blowing" (first edition). Appendix A of this Part is a normative appendix. Appendix B is an informative appendix. This Part was proposed by AND shall be under the jurisdiction of China Communications Standardization Association. Drafting organizations of this Part. Wuhan Research Institute of Posts and Telecommunications, Datang Telecom Technology Industry Group, Changfei Optical Fiber and Cable Co., Ltd., Jiangsu Zhongtian Technology Co., Ltd., Sichuan Huiyuan Optical Communication Co., Ltd., Beijing Tonghe Shiyi Telecommunications Science and Technology Research Institute Ltd. The main drafters of this Part. Shi Huiping, Xue Mengchi, Song Zhituo, Wang Jianwei, Wu Yanxiang, Wang Han. Telecommunication microduct optical fiber cables and fiber units for installation by blowing - Part 3.Microducts, microduct bundles and microduct accessories

1 Scope

This Part of YD/T 1460 specifies the definition, product model and marking, requirements, test methods, inspection rules, packaging, transportation, storage of microducts and microduct bundles, as well as the basic requirements for microduct accessories. This Part applies to microducts, microduct bundles, microduct accessories for installation in outdoor or indoor, by blowing.

2 Normative references

The provisions in following documents become the provisions of this Part through reference in this Part of YD/T 1460.For the dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this Part; however, parties who reach an agreement based on this Part are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 2828-2003 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches) (ISO 2859-1.1999, IDT) GB/T 6671-2001 Thermoplastics pipes - Determination of longitudinal reversion (eqv ISO 2505.1994) GB 6995.2-1986 Markings for electric cables and wires - Part 2.Standard colours GB/T 7424.2-2002 Optical fiber cable generic specification - Part 2.Basic optical cable test procedures (IEC 60794-1-2.1999, Optical fiber cables - Part 1-2.Generic specification - Basic optical cable test procedures, MOD) GB/T 8804.1-2003 Thermoplastic pipes - Determination of tensile properties - Part 1.General test method (ISO 6259-1.1997, IDT)

3 Definitions

The following definitions apply to this Part. 3.1 Microduct bundles See the definition in Article 3.3 of YD/T 1460.1-2006.

4 Product model and marking

4.1 Product classification According to the different combinations of microducts, they can usually be divided into three types. 4.2 Types 4.2.1 Type composition Product's type marking includes product category, material, construction, as shown in Figure 1. 4.2.2 Product category 4.3 Specifications 4.3.1 Specifications of microducts The specifications of the microducts consist of the outer and inner diameters of the microducts. The outer diameter and the inner diameter are connected by a "/" sign. 4.4 Model and marking 4.4.1 Models Product model consists of type and specification. Different parts are separated by spaces. 4.4.2 Marking The microduct product marking shall be identified, when processing and ordering, which consists of the model of the microduct and the serial number of this Part. Example 1.For the microduct for installation by blowing, which is made of high- density polyethylene, has an outer diameter of 7.0 mm and an inner diameter of 5.5 mm, whose duct wall structure is ribbed, THEN, the product marking shall be expressed as. SYHL 7/5.5 YD/T 1460.3-2006

5 Requirements

5.1 General requirements The provisions of 5.4 and 5.5 of YD/T 1460.1-2006 apply to this Part. When in use, microducts, microduct bundles or microduct cables must be used, in combination with corresponding accessories. The requirements of microduct accessories are as shown in Appendix A. 5.2 Structure 5.2.1 Structure example Examples of structures for microducts, microduct bundles, microduct cables are as shown in Appendix B. 5.2.4 Microduct bundles Microduct bundles are formed by the collection of a certain number of microducts (bundling). It can be installed in the existing outer protective tube at one time, BUT cannot fill the entire outer protective tube. The duty cycle shall not be greater than 60%. 5.2.5 Microduct cables Where there are waterproof and moisture-proof requirements, the microduct cable shall have a moisture barrier. The material of the moisture barrier shall be such, that can block water and moisture. The sheath of the microduct cable shall be able to completely cover the microduct bundles therein; the thickness should be 0.8 mm. 5.3 Technical requirements 5.3.3 Environmental performance 5.3.3.1 Air pressure 5.3.3.2 Water pressure tightness The microducts, which are connected by microduct joints, shall be airtight as a whole AND meet the test requirements of 6.5.3. 5.3.3.3 Freezing There are no freezing requirements for microducts. Put the microduct at -15 °C for 10 h, the tube shall have no cracks or breaks, meanwhile there shall be no obvious cracks and defects in appearance. 5.4 Delivery length The nominal value of the standard manufacturing length of the microduct should be 2000 m, 3000 m or 4000 m, which has a tolerance of 0% ~ +5%.

6 Test methods

6.1 General The properties of the microducts shall be tested, according to the test methods specified in Table 6. 6.2 Microduct structure inspection The microduct structure shall be visually inspected, at no less than 100 mm away from the end of the microduct, for the integrity and structure of the microduct; the inner wall can be viewed with a light source. 6.3 Dimensional inspection 6.3.1 Length The delivery length is measured by a metering device, whose measurement error must not be negative. The measurement error is determined by a steel tape measure, which has an accuracy of 1 mm. 6.4 Measurement methods of mechanical properties 6.4.1 General requirements The following test methods and test conditions are used, to verify the mechanical properties of the product. When the test results meet the requirements of Chapter 5, and it is judged to be qualified. 6.4.2 Tensile property 6.5 Measurement methods of environmental performance 6.5.1 General The test methods and test conditions, which are specified below, are used to verify the environmental performance of the product. When the test results meet the specified qualification criteria, it is judged to be qualified. 6.5.2 Air pressure

7 Inspection rules

7.1 General The manufacturer shall establish a quality assurance system, to ensure that the product quality meets the requirements of this standard. Microduct products shall be inspected by the quality inspection department of the manufacturer. 7.2 Exit-factory inspection 7.2.1 Exit-factory inspection items The exit-factory inspection items are as shown in Table 6. 7.2.2 Sampling 7.2.3 Judgment rules For the size in Article 5.2, in the n samples in accordance with the sampling scheme in Table 7, if there are less than or equal to Ac samples, that do not meet the requirements, the batch is judged to be qualified. If there are more than or equal to Re samples, that do not meet the requirements, the batch is judged to be unqualified. If one of the items in 5.3 fails to meet the indicator, it may randomly select double quantity of samples, for re-inspection of the item. If it is still unqualified, the batch will be judged unqualified. 7.3 Type inspection 7.3.1 Inspection conditions In one of the following cases, type inspection shall be carried out. 7.3.2 Inspection items The items of type inspection are all items in Table 6. 7.3.3 Sampling For the specimens, which are used for type inspection, they shall be randomly taken Batch size N Sample size n Acceptance number Ac Rejection number Re from the qualified products in the exit-factory inspection. The number of samples shall meet the requirements of each item in Chapter 6. 7.3.5 Sample processing For the samples for type inspection, regardless of whether they are qualified or not, they are not allowed to leave the factory.

8 Packaging, transportation, storage

8.1 Packaging The microducts are packed in wooden discs; the inner end must be drawn out and protected against impact, to facilitate the inflation in the microducts. The diameter of the inner circle of the wooden disc shall not be less than the minimum bending diameter of the microduct or microduct bundle. 8.3 Storage 8.3.1 Storage field The storage field shall be flat and neatly stacked. The stacking height shall not exceed 3 m. It shall not be exposed to the sun. 8.3.2 Storage temperature -20 °C ± 60 °C. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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